And to expand on that, even the nominal temperature is more of a “middle” temperature. Depending on the size, the temperature of most standard size home ovens will vary by as much as 50° F between top and bottom. Convection ovens help to mitigate this, but the recipe needs to account for that.
Also, to expand on your thought a bit, most ovens are lucky to hold ±5° of set temp anyways.
And to expand on that, even the nominal temperature is more of a “middle” temperature. Depending on the size, the temperature of most standard size home ovens will vary by as much as 50° F between top and bottom. Convection ovens help to mitigate this, but the recipe needs to account for that.
Absolutely, our oven is very old, and we generally have to run it 10°C above what the recipes say.